This post was actually already posted last April 26, 2011 as PositiveThinking Christians – Be One! However, it was mainly for audiences in my home country, so I did some editing for the international readers...
As Christians, do we really have an idea what positive thinking is? A friend of mine claims that they practice a “no negativity” rule at home, and I was almost convinced she knew what she was saying until I heard her conversation with my sister. Honestly, I forgot the beginning part, since I wasn't listening too well. But the ending part sure did get my attention.